LDPC Method and Apparatus for multi decoding corresponding to Turbo decoder and LDPC decoder

摘要

A multiple decoding method and apparatus for a turbo decoder and an LDPC decoder are disclosed. The multiple decoding apparatus according to an embodiment of the present invention includes a plurality of check node arithmetic units for LDPC decoding, a plurality of bit node arithmetic units, and a common arithmetic unit for performing common arithmetic operations with each of the node arithmetic units A plurality of unit decoders including a plurality of decoders for turbo decoding; A mode selection unit receiving a mode selection signal for selecting one of the turbo decoding and the LDPC decoding; And for outputting one of the plurality of decoders of the preceding unit decoders in the plurality of unit decoders adjacent to each other to one of the plurality of decoders of the succeeding unit decoders based on the mode selection signal A plurality of interleaving control units; And a plurality of deinterleaving control units for deinterleaving one of the plurality of decoders of the subsequent unit decoding unit based on the mode selection signal and selectively outputting the deinterleaved output to one of a plurality of decoders of the preceding turbo decoding unit.